[C++] C++ Proxy assumes C++ Service implementation?

[Simon Laws]

The default C++ proxy currently seems to assume that its always trying to
talk to a C++ service. Line 104 of CPPServiceProxy looks like

               // If we got here we have a CPP implementation
               CPPImplementation* impl = (CPPImplementation
*)componentType;

Did I understand this correctly? If so why is this the case?

Regards

Simon